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Symmetry
Special Issues
Topics in Nanocomposites and Magnetic Materials: Symmetric/Asymmetric Applications
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Topics in Nanocomposites and Magnetic Materials: Symmetric/Asymmetric Applications

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Physics".

Deadline for manuscript submissions: 30 November 2025 | Viewed by 369

Special Issue Editors

Dr. Mohammed Al Bahri

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Guest Editor
Department of Basic and Applied Sciences, A’Sharqiyah University, Ibra, Oman
Interests: nanoscience magnetic materials;especially magnetic nanowires;magnetic domain walls
Dr. Fatma Al Ma'Mari

E-Mail
Guest Editor
Department of Physics, College of Science, Sultan Qaboos University, Al-Khoud, Oman
Interests: magnetic nanomaterials; spintronics

Special Issue Information

Dear Colleagues,

Symmetry and asymmetry play pivotal roles in understanding and enhancing the behavior, properties, and phenomena of nanocomposites and magnetic materials. This Special Issue will explore various aspects of symmetry, focusing on how symmetric and asymmetric structures affect the performance and functionality of advanced materials. By delving into topics such as crystal structures, magnetic anisotropy, symmetry breaking, and domain behavior, we aim to provide a comprehensive view of the ways symmetry and asymmetry influence applications in magnetic storage, spintronics, and energy storage. We invite contributions that illuminate the interplay between symmetry and functionality, offering insights into the vast potential of these materials in cutting-edge technologies.

We eagerly await your valuable contributions.

Dr. Mohammed Al Bahri
Dr. Fatma Al Ma'Mari
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Symmetry is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • nanocomposites
  • magnetic materials
  • symmetry
  • asymmetry
  • spintronics
  • magnetic storage
  • energy storage
  • synthesis techniques
  • properties tuning
  • functional applications

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (1 paper)

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Research

14 pages, 4107 KiB  
Article
Thermal Influence on Chirality-Driven Dynamics and Pinning of Transverse Domain Walls in Z-Junction Magnetic Nanowires
by Mohammed Al Bahri, Salim Al-Kamiyani, Mohammed M. Al Hinaai and Nisar Ali
Symmetry 2025, 17(8), 1184; https://doi.org/10.3390/sym17081184 - 24 Jul 2025
Viewed by 248
Abstract
Magnetic nanowires with domain walls (DWs) play a crucial role in the advancement of next-generation memory and spintronic devices. Understanding the thermal effects on domain wall behavior is essential for optimizing performance and stability. This study investigates the thermal chirality-dependent dynamics and pinning [...] Read more.
Magnetic nanowires with domain walls (DWs) play a crucial role in the advancement of next-generation memory and spintronic devices. Understanding the thermal effects on domain wall behavior is essential for optimizing performance and stability. This study investigates the thermal chirality-dependent dynamics and pinning of transverse domain walls (TDWs) in Z-junction nanowires using micromagnetic simulations. The analysis focuses on head-to-head (HHW) and tail-to-tail (TTW) domain walls with up and down chirality under varying thermal conditions. The results indicate that higher temperatures reduce the pinning strength and depinning current density, leading to enhanced domain wall velocity. At 200 K, the HHWdown domain wall depins at a critical current density of 1.2 × 1011 A/m2, while HHWup requires a higher depinning temperature, indicating stronger pinning effects. Similarly, the depinning temperature (Td) increases with Z-junction depth (d), reaching 300 K at d = 50 nm, while increasing Z-junction (λ) weakens pinning, reducing Td to 150 K at λ = 50 nm. Additionally, the influence of Z-junction geometry and magnetic properties, such as saturation magnetization (Ms) and anisotropy constant (Ku), is examined to determine their effects on thermal pinning and depinning. These findings highlight the critical role of chirality and thermal activation in domain wall motion, offering insights into the design of energy-efficient, high-speed nanowire-based memory devices. Full article
(This article belongs to the Special Issue Topics in Nanocomposites and Magnetic Materials: Symmetric/Asymmetric Applications)
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